de vlieg



Dec. 9, 1930.

SETTING GAUGE Filed Nov. 17, 1926 INVENTOR ATTORNEYS ing reamers with inclined blades, but it is to Patented Dec. 9, 1930 y UNITED STATES gaar-*ENTlorrlcg:

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The present invention relates to improvements in setting gauges for positioning work blanks relative to an operating element.

The objects of the invention are to provide a new and improved setting gauge which is simple and sturdy in construction, which 1s accurate and precise in use, which comprises means for preventing lost motion, which comprises a settingpoint adapted to be moved quickly and conveniently into and out of operative position, and which can be accuratelyy adjusted to adjust the position of thesetting point.

Further objects and advantages will become apparent as the description proceeds.v

In the accom "anying drawings:

Figure lis a agmentaryview'partially in section of a grinding machine to which a setting gauge embodyin the features of my invention has been app ied.

Fig. 2 isA a fragmentary sectional view of the setting gauge taken along line 2 2 of Fig. 3.

Fig. 3 isv a fragmentary view partially f sectioned along line 3-3 of Fig. 2.

Fig. 4 is a view showing the setting gauge in front elevation. i KK While the invention is susceptible of various modifications and alternative constructions, I have shown herein and will describe in detail the preferred embodiment, but it is to be understood that I doi not thereby intend to limit the invention to the specic form disclosed, but intend to cover all modications and alternative constructions falling within the spirit and scope of the invention, asexpressed in the appended claims.'`

In the kaccompanying drawings, I have shown the preferred `form of my invention applied to a grinding machine for sharpenbe understood that the invention is applicable to a large variety of machine tools. i

Referring more specifically lto the drawings, the grinding machine comprises generally a frame 5 having a vertical standard 6 on the rear. A grinding wheel 7, which preferably is cup shaped and is inclined slightly from the perpendicular to the front of the machine, is rotatably mounted in the vverticalstandard 6. 1 I Mounted for reciprocation on the front? of lthe machine, and across the face ofthe grinding wheel-is a carriage 8 on which are ad- -justably supported a headstock 9v and a tailstock 10. i An arbor 11'` for ksupporting the `cutter 12 is 'adjustably mounted between the centers of the headstock 9 and tailstock 10, and When-the cutter has inclined blade-s, is adapted to be rotated through the headstock in timed relation to thereciprocation of the carriage g8 so asftocompensate for the inclinationof the blades of the cutter. Y In sharpeningcutters having--a'plurality of spaced blades, whether the cutter be indexed manually, or be indexed automatically, as described in vmy Patent No. 1,710,533, dated April 23,1929, it is extremely important and isin fact necessary that the cutter be accurately positioned relative to the grinding wheel so as lto produce the correct size, clearance and contour. To correctly v position thev cutter, whether it be initially, or afterV indexing, or

during its reciprocatory movement, a setting gaugeV is provided which is fixed with reference to the positionl of the grinding wheel, and which isadaptedto-V define the angular position of any blade of the cutter relative to the grindingv wha-1.`

j The setting gauge selectedfor illustration comprises a linggerl 13l having an offset; portion 14 formed with ,a Point 15. vThe upper Y end of the finger VA13Vis 'pivotally mounted on a pin lf3-fin` aslot-1`7lin the lower end ofak Y vsupporting bar 18. The loweryend of the bar "18' with the' downwardly and laterally opening slotl' constitutes a. slotted head for the linger V13.V The 4finger point 15, when in operative position (shown in full outline in Fig'.f2).,is adapted to beeng-aged by the tace `offacutter blade to position the cutter 12 Y relative to the grindingwh'eel; A finger grip 19fis yformed on oneside of the finger, Vand provides means 'whereby the finger can be swung upwardly into inoperative position (shown in` dotted outline), or downwardly into operative position.l V'ToVyieldingly revtain thenger. 13 in-`anyf one Vof its different j-pos'itiengthe pivoted end of the finger is formed with a plurality of notches and 21, which are adapted to be selectively engaged by a spring pressed detent 23 slidably mounted in a bore 24 in the lower end of the supporting bar 18. The detent is pressed downwardly by a coil spring 25, which is disposed in a bore 26 in the inner end of the detent, and which impinges againstthe inner end of the bore 24. v

The supporting bar 18 is non-rotatablyA and adjustably disposed'in a'vertical bore`27 formed through a sleeve 28 on a bracket 29.l The latter preferably istormed integral with the hood 30 for the grindingwheel 7. To prevent rotation of the bar 18, a suitable bolt 28a is threaded through the sleeve 28 into a longitudinal spline groove`18fL in the bar. The upper end of the bore 27 is closed by athreaded bushing 31. Formed on the upper end oi the bar 18 is a threaded shank or stem 32, which extends upwardly through the bushing 31, and which is adapted to be adjusted longitudinally by a nut 33 to be clamped in adjusted position by a nut 34. A micrometer ring 35 on the sleeve 28 encircles the adjusting nut 33, and serves to indicate the position ol: adjustment of the bar 18 and hence the linger 13. To take up lost motion, a coil spring 36 is positioned on the stem 32, and butts at one end against the upper end of the bar 18 and at the other end against the inside of the bushing 31.

In using the setting gauge, the linger 13 is moved into operative position to define the desired position for eac-h blade of the cutter as it is presented to the grinding wheel. W ith the linger 13 in operative position, the cutter 12 is angularly adjusted to bring one of its blades into contact with the point 15. If the linger is to be used only for initially adjusting the cutter, it is then moved upwardly into inoperative position.

It will be evident that I have provided va setting gauge which is convenient andaccurate, which can be adjusted into any desired position, which can be moved out of the way when not in use, and which is simple and sturdy in construction.

I claim as my invention: Y

1. A setting gauge having, in combination, an upright sleeve, an upright bar nonrotatable in said sleeve, said bar being formed in its lower end with an aXial opening and with a slotted head, and being formed on its upper end witha threaded stem, abushing closing the upper end of said sleeve and Fitting about said stem, an adjusting nut mounted on said sleeve and engaging said stem, a lock nut on said stem, a coil spring in said sleeve abutting at its opposite endsI against the upper end Y of'said bar and against the inside of said bushing, a setting linger pivotally mounted at one end in said .slotted head, the pivoted end of Vsaid linger being'formed with a plurality of notches, and' a springpressed detent mounted in said bar and adapted to selectively engage said notches to hold said linger in any one of a plurality of positions.

2. A setting gauge having, in combination, a support, a member adjustably mounted in said support, and having a slotted head on one end, a setting linger pivotally mounted at one end in said slot, said `linger having a setting point and a linger grip, and spring pressed means for holding said linger selectivelyfinoperativeposition or in inoperative Positionv3. A setting gauge having, in combination,

.a support, an elongated member longitudinally adjustable in said support, a setting linger -pivotally `mounted at one end in one end ot said member, said lingerv having a setting point, and spring pressed` means for holding said linger selectively in operative position or in inoperative position.

. V4. A setting gauge having, in combination, a support, .a bar non-rotatably mounted in ksaid support, means for adjusting said bar longitudinally insaid support, spring means pressing said bar in one direction to take up lost motion, a setting linger pivotally mounted in one end of the bar for movement into any one of a plurality of positions, and spring actuated detent means for holding said linger yieldingly in position.

5. A setting gauge having, in combination, a vertical sleeve, an upright bar non-rotatable in said sleeve, said bar being -formed in its lower end with an axial opening, and on its upper end with a threaded stem, means for adjusting said stem vertically, a setting linger pivotally mounted at one end in the lower end of said bar,'the pivoted end of said linger being iormed with a pluralityoi notches, and a spring pressed detent mounted in said axial opening and adapted to selectively engage said notches to hold said linger in any one of a plurality ol positions. Y

6. A setting gauge having, in combination, a support, a member adjustably mounted in said support, a 'setting linger adjustably mounted in said member, said linger having a setting` point, and spring actuated means for yieldinglyv holding the said linger selectively in dillierent predetermined positionsof adjustment. Y

In testimony whereof, I have hereunto allixed my signature.

GERARD A. DE VLIEG. 

